From patchwork Fri May 31 15:09:06 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Jones X-Patchwork-Id: 17399 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-qa0-f71.google.com (mail-qa0-f71.google.com [209.85.216.71]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id 2907125DFA for ; Fri, 31 May 2013 15:09:15 +0000 (UTC) Received: by mail-qa0-f71.google.com with SMTP id g10sf1262268qah.6 for ; Fri, 31 May 2013 08:09:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-beenthere:x-forwarded-to:x-forwarded-for :delivered-to:from:to:cc:subject:date:message-id:x-mailer :x-gm-message-state:x-original-sender :x-original-authentication-results:precedence:mailing-list:list-id :x-google-group-id:list-post:list-help:list-archive:list-unsubscribe; bh=K3fiDDbE05nHiuGKg9pyXeL5Akab7I60jDaQLL+HTHo=; b=cPt54K24l1sSmha1khYbR8fOD0wTKtXanNy07+zEslOyF8LmcE35bAogeUh80RcVGY xsXx2Qu6bs3B1GrmuFTfYA4IkuD9esKIfqmL+9vrPzRBGHZSpdbqMNNsV7QuKAdcSo8P nSTOtqtTzqZybqp9LNWD+sPiLwxz4w0VJagiN6I0XLjtZ6XZLokMR0PpaTDaTfwXnCI6 CDxs8LwheFn/HZ0zDgEtjAGUQlJ3o6jkU/ftRmY7fzQNd1oczDCJI5Mhb2bQyPYm0wkk Uk7NdkCEXFHfLyKpVPgmAmpjzdeqviC6KI4GTwmPKBIgzmsBgmH8nrE7e7ok5CpmdIhw ZcTw== X-Received: by 10.236.209.196 with SMTP id s44mr1918021yho.25.1370012954624; Fri, 31 May 2013 08:09:14 -0700 (PDT) MIME-Version: 1.0 X-BeenThere: patchwork-forward@linaro.org Received: by 10.49.87.99 with SMTP id w3ls962592qez.32.gmail; Fri, 31 May 2013 08:09:14 -0700 (PDT) X-Received: by 10.220.40.212 with SMTP id l20mr10571124vce.29.1370012954411; Fri, 31 May 2013 08:09:14 -0700 (PDT) Received: from mail-vb0-x233.google.com (mail-vb0-x233.google.com [2607:f8b0:400c:c02::233]) by mx.google.com with ESMTPS id y2si28663953vck.40.2013.05.31.08.09.14 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 31 May 2013 08:09:14 -0700 (PDT) Received-SPF: neutral (google.com: 2607:f8b0:400c:c02::233 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) client-ip=2607:f8b0:400c:c02::233; Received: by mail-vb0-f51.google.com with SMTP id x17so217235vbf.10 for ; Fri, 31 May 2013 08:09:14 -0700 (PDT) X-Received: by 10.52.163.207 with SMTP id yk15mr8922210vdb.42.1370012954276; Fri, 31 May 2013 08:09:14 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patches@linaro.org Received: by 10.220.229.199 with SMTP id jj7csp53981vcb; Fri, 31 May 2013 08:09:13 -0700 (PDT) X-Received: by 10.180.208.107 with SMTP id md11mr3643506wic.52.1370012952777; Fri, 31 May 2013 08:09:12 -0700 (PDT) Received: from mail-we0-x235.google.com (mail-we0-x235.google.com [2a00:1450:400c:c03::235]) by mx.google.com with ESMTPS id n10si2108291wiy.14.2013.05.31.08.09.12 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 31 May 2013 08:09:12 -0700 (PDT) Received-SPF: neutral (google.com: 2a00:1450:400c:c03::235 is neither permitted nor denied by best guess record for domain of lee.jones@linaro.org) client-ip=2a00:1450:400c:c03::235; Received: by mail-we0-f181.google.com with SMTP id u57so1342212wes.40 for ; Fri, 31 May 2013 08:09:12 -0700 (PDT) X-Received: by 10.194.63.140 with SMTP id g12mr9962439wjs.13.1370012952229; Fri, 31 May 2013 08:09:12 -0700 (PDT) Received: from localhost.localdomain (cpc34-aztw25-2-0-cust250.18-1.cable.virginmedia.com. [86.16.136.251]) by mx.google.com with ESMTPSA id dj7sm4567296wib.6.2013.05.31.08.09.10 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 31 May 2013 08:09:11 -0700 (PDT) From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: arnd@arndb.de, linus.walleij@stericsson.com, srinidhi.kasagar@stericsson.com, Lee Jones Subject: [PATCH] ARM: ux500: Enable HIGHMEM in the u8540 defconfig Date: Fri, 31 May 2013 16:09:06 +0100 Message-Id: <1370012946-7374-1-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 1.7.10.4 X-Gm-Message-State: ALoCoQkUU+zQqkcjypu2TJSvylkmoKHzNCoFN7wrNi2mFoSxttxmHIW/CpObP6g548t9Ye++CMkT X-Original-Sender: lee.jones@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 2607:f8b0:400c:c02::233 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Precedence: list Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org List-ID: X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , In order to utilise all of the memory located on ux500 based devices we have to enable HIGHMEM. Without it the kernel truncates memory down to what's left after the PAGE_OFFSET has been applied, which doesn't leave an awful lot, especially if we're running large rootfs' such as full Linux desktop distributions or Android. Signed-off-by: Lee Jones --- arch/arm/configs/u8500_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index 2d322d2..38d633a 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -1,3 +1,4 @@ +CONFIG_HIGHMEM=y # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_NO_HZ=y